aplly to matrix a probability distribution for submatrix

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Hello ! I would apply to my matrix , a generical probability distribution (such as normal) for submatrix IXJ ( i = j ) (for example, 4x4 or 3x3) . I'm attaching a picture to explane better my problem. how can I write this code? thanks

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Mohammad Abouali
Mohammad Abouali el 24 de Nov. de 2015
Editada: Mohammad Abouali el 24 de Nov. de 2015
It appears for your case, if your kernel (or probability distribution) is symmetric you can use both conv2() or xcorr2(). If it is not symmetric you should use xcorr2)

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